Hatch for trawlers



Jan. 22, 1963 "J LUKE-TA l n 3,074,369

HATCH FOR TRAWLERS Filed May 3, 1960 4 Sheets-Sheet 1 Q Q s w 3 *Q R *N N x Nk )CN u,

w R M K* LQ FRANK J 0A/(TA A rroR/vfy' Jan. 22, 1963 F. J. LUKETA HATCH Foa TRAwLERs 4 Sheets-Sheet 2 Filed May 3, 1960 F. J. LUKETA 3,074,369

HATCH FOR TRAwLERs 4 Sheets-Sheet 5 Jan. 22, 1963 Filed May 5, 1960 9 Ill Jan. 22, 1963 F. J. LUKETA 3,074,369

HATCH FOR TRAWLERS 7 Ar 98a. 981! INVENTOR.

Penn/M J MMF/"A ,4 7i faQ/VEP? United States Patent Oiihce Patented Jan. 22, v1963 3,074,369 HATCH FOR 'IRAWLERS Frank J. Luketa, 5567 Greenwood, Seattle, Wash.

Filed May 3, 1960, Ser. No. 26,555 Claims. (Cl. 114-201) This invention relates to a trawling vessel, illustrated as one intended for catching shrimp, but in no sense to be understood as limited to such use. In particular the present invention concerns the means whereby decapitated shrimp bodies are delivered selectively to appropriate hold spaces wherein they are refrigerated and held until the vessel reaches a market.

Companion applications have explained how the net is hauled in and reset, and how the catch is segregated from the debris which always comes up with it in the net, and disposed of, and the heads are removed and disposed of. Similar features are incorporated in the drawings of this invention, but the hatch and chutes whereby the segregated, decapitated bodies yare stowed in appropriate hold spaces, and the relationship between such hatch and chutes on the one hand and other gear, structure, and equipment on the other hand, constitute the subject matter of this invention.

The present invention has as its object the provision of shrimp-guiding chutes in association with a hatch and hatch cover, whereby despite limited deck spaces and certain interfering structure in the hold space the shrimp bodies may be distributed to and stowed within intended outboard hold spaces or bins, with minimum attention or labor, and without obstructing the normal opening or closing of hatch covers, or access within the hold through the hatch. It also provides free access to the hold spaces for icing, whenever necessary.

The accompanying drawings show the present inven tion installed aboard a vessel whereon are installed the other gear, structure, and mechanism mentioned, and illustrates the cooperative relationship of all thereof. The showing is to be taken as illustrative and not restrictive.

FIGURE 1 is a general plan view of the after deck of such a vessel.

FIGURE 2 is a side elevational view, partly'broken away, of the same.

FIGURE 3 is a transverse sectional view, at the line 3-3 of FIGURE l.

FIGURE 4 is an isometric view, broken away, of the hatch and associated parts of this invention, in their operative positions.

FIGURE 5 is an isometric view, similar to FIGURE 4, but showing parts in the open position, affording free movement of persons and cargo through the hatch.

FIGURE 6 is an enlarged side elevational view, broken away, with parts in position corresponding to FIGURE 2.

The trawler hull is designated in general by the numeral 9, and has a stern 90, deck 91, and bulwarks 92. A deck house 93 is usually placed somewhat forward of amidship, and a mast 94 and boom 95 rise just aft of the deck house. Stanchions S1, S2 secure the doors when the net is being hauled in. A hatch 8 and main hatch cover 80 afford access to the hold space where refrigerated shrimp are stowed pending their marketing, while a smaller auxiliary hatch cover 81 aiords access to chutes 82 leading, as will be explained more fully hereinafter, to the stowage space. A ramp structure gener-ally designated by the numeral 1 extends outboard aft of the stern, during trawling, and guides the net during hauling in and hauling out by the drums of the winch means 6, installed on deck just aft of the mast and boom.

The ramp structure includes transverse rollers 10 and 12 extending between side guides 11 to constitute a platform over which the net is dragged by haul-in lines L1, L2 or haul-out line H, the ramp structure being releasably supported at 14 in its position of use, but being swingable about the axis of its inboard roller 10 to an inboard stowed position. Line guide means 3, 31, 32 are used as explained in the companion application for guidance of the haul-out line and net, while paired upstanding line guides 13a, 14a and 13b, 14b guide the haul-n lines L1, L2, with the respective sweep lines and curtains connected, during hauling in. I ack means 14c (FIGURE 3) allow the inside guides 14a, 14b to be raised and lowered.

The winch means 6 includes a number of independently operable, coaxially disposed drums oriented athwartwise. The drums 61a, 61b carry the trawl warps T1, T2 whereby the net is dragged during trawling such warps running through guide blocks 96a, 96h and over opposite sides of the vessel, near stanchions S1, S2 where water reaction doors are secured when the net is hauled in. Drums 62a, 62b wind on the hauling lines L1, L2 which are connected to the net in lieu of the trawl warps in the latter phase of hauling in, and central drum 63 reels in the net itself. Drums 64a and 64b carry lines for various purposes, the combination haul back and try net line H being wound on drum 64b and the utility lifting line U on drum 64a.

In addition the vessel includes segregating means, indicated generally at 7, which includes a flexible bin bottom 74 between iixed side walls, and means 75a, 75b, 76a, 76b, 76e` and 77 for elevating the bottom 74 to spill the catch onto segregating table 72, all as explained more fully in my companion application on the Segregator, Serial No. 20,581, tiled April 7, 1960. Debris is sent overboard by way of chutes 70, assisted by water iets 70a, and decapitated bodies are collected in containers 71. These containers are then hand-carried to the mechanism which is the subject of this invention, for emptying, as is suggested in FIGURE 4 hereof.

There is but little deck space, andthe winch 6 and segregating means 7 occupy much of this, yet access must be had by way of the hatch to the hold space. Accordingly, the chutes for disposal of the shrimp bodies are installed within the hatch, associated with the hatch cover, but in such a way that access to and from the hold space is not so restricted as to be impossible at Iany time, either through the main hatch upon raising the hatch cover 80, or through the auxiliary hatch upon raising the smaller hatch cover 81. Also, these chutes must not hinder raising or securing of the respective hatch covers.

The main hatch cover 80 is hinged along its forward edge, at 83, to the hatch coaming 8. It can be in its closed and secured position, as shown in FIGURE 6 in full lines, or in its open position, as shown in dot-dash lines. The smaller auxiliary hatch cover 81 is hingedly mounted at 85 to the main hatch cover 80, to cover a small hatch opening in the latter, as in all the figures in full lines, or to be swung aside as shown in dot-dash lines in IFIGURE 4. Suitable securing means 88 are provided for each hatch cover.

The purpose of the auxiliary hatch and cover 81 is largely to enable the catch to be delivered into the hold spaces intended to receive it, without exposing the entire main hatch, but it is frequently necessary for a member of the crew to enter or leave the hold to ice each additional layer of shrimp without opening the main hatch. The auxiliary hatch is large enough for this, and a ladder 97 is hung 4from brackets 86 beneath the main hatch for use in such cases. Before the main hatch cover 80 is swung up the ladder can be detached and placed as in FIGURE 5.

The auxiliary hatch cover 81 covers the upper end of vertical chutes 82 which are xed to the main hatch cover 80, within the smaller hatch. While the cover 80 is closed these chutes 82 lead into the upper ends of chutes or extensions 84 which are directed laterally at their lower ends, and are pivotally mounted at 87, at their upper ids? tof-'the vertical' e '1.82. The chutes 84 extend laterallygnls` statedfin" orderl to'direct thecatchwhichis dumped into a chute 82 laterally into an outboard hold line'gwlicnlhe' hatchcover Sil-is secured and the chutes 84l are'swung outboard and secured.

f I claim as rnyinvention:A 1' v A .vesselhaving a main vhatch affording accese be-v tween a deck above and hold space beneath vthedeck', a faisable main hatch cover for openingor closing the hatch,' said hatch cover vbeing formed with anauxiliary Y partof th e chute means hasits agii's` angularlyfdispose'd with relation to the hinge axis: ofthe main hatch cover.'

3. 1} vessel having a main hatch affording access be#Y tween" deck al? carried byfsaidnnain hatch cover radially'outwardly o'f its laxi's O f.' 'Swing for'; removably Supporting rheilpperi end of said l'adder, 'for access .to"an d Aremoval thereof 5 or beforefraisingfthe 'main hatch cover.

an auxiliary rha tch,' an auxiliary' hatch cover for, closing' o'r affording 'access' 'through thej auxiliary hatch,"the lad-' der and it ,$uppqr t ing. IneansJbeinglocated for 'access hefauxiliaryhatch'. j

'liatchjcbvr 'hingedly mounted .along one .edge for h an'fauitilary 'hatchalso admitting to the hold space! Echut'egrriear'is,.hingedlyl mounted upon- 'the main hatch cover yto ewingupon an axis perpendicular tothe hingearis` of the ra'i'n hatch cover, an auxiliary hatch cover .for lc losjngr opening the auxiliary hatch andthe upper end ,of'fsaidchute mean`s, and a projection Iat the.

lowei end of s id chute lmeans lpositioned laterally'beyond the.outl i ne ofthefniain hatch when the chutemeans de p'ends Qin operative .13f 5 fi on but rnovable within such 'utlinewhen the chutemeans -is hinged inwardly, Vthus to'allovv opening of the rnain hatch cover.

`References Cited'in'the' le of this p'at'ent nennen STATES VPATENTS l' and h o ld eprice beneath 'the deck, a minjghefc'hnwvsr"Swingbly mounted.. at one edgejytqri swinging'open o'rto 'closed positioma ladder, and meang glthe h atc h, saidf hatchf cover being 

1. A VESSEL HAVING A MAIN HATCH AFFORDING ACCESS BETWEEN A DECK ABOVE AND HOLD SPACE BENEATH THE DECK, A RAISABLE MAIN HATCH COVER FOR OPENING OR CLOSING THE HATCH, SAID HATCH COVER BEING FORMED WITH AN AUXILIARY HATCH ALSO ADMITTING TO THE HOLD SPACE, A TWO-PART CHUTE MEANS EXTENDING THROUGH THE AUXILIARY HATCH, ONE SUCH PART BEING FIXEDLY SUPPORTED UPON THE MAIN HATCH, WITHIN THE OUTLINE THEREOF, AND THE OTHER SUCH PART BEING HINGEDLY MOUNTED BENEATH THE FIRST PART, AND HAVING A LATERALLY DIRECTED LOWER TERMINUS EXTENDING OUTBOARD OF THE OUTLINE OF THE MAIN HATCH WHEN IN POSITION OF USE, BUT SWINGABLE INBOARD THEREOF BY ITS HINGED MOUNTING, FOR MOVEMENT THROUGH THE MAIN HATCH UPON RAISING OF THE MAIN HATCH COVER, AND AN AUXILIARY HATCH COVER FOR CLOSING THE AUXILIARY HATCH AND THE UPPER END OF SAID CHUTE MEANS. 